ProMo variable/equation Ontology-based systemmodelling

2021 ◽  
pp. 733-738
Author(s):  
Niloufar Abtahi ◽  
Heinz A. Preisig
Keyword(s):  
Variable Equation

Kinetics of Cavity Growth In Solder Joints During Thermal Cycle

1984 ◽  
Vol 40 ◽  
Author(s):  
Donald S. Stone ◽  
Thomas R. Homa ◽  
Che-Yu Li
Keyword(s):  
Printed Circuit Board ◽  
Solder Joints ◽  
Cavity Growth ◽  
Circuit Board ◽  
Printed Circuit Board Assembly ◽  
State Variable ◽  
Circuit Board Assembly ◽  
Variable Equation ◽  
Chip Carrier ◽  
Kinetics Of

AbstractGrain boundary cavity growth in solder joints during thermal fatigue is analyzed. The stress cycle profile is estimated based on a geometrically simplified model of a ceramic chip carrier - printed circuit board assembly and a state variable equation for plastic flow in the solder.

scholarly journals VISITORS’ PERCEPTION OF CIREBON AS A TOURIST DESTINATION-BUILDING TO PROMOTE THE CITY

ETIKONOMI ◽  
2012 ◽  
Vol 11 (1) ◽  
Author(s):  
Wendy Purnama Tarigan ◽  
Tuti Handayani
Keyword(s):  
Latent Variable ◽  
Structural Equation ◽  
The Other ◽  
Tourist Destination ◽  
Image Communication ◽  
Equation Modelling ◽  
Communication Variable ◽  
Variable Equation ◽  
The City ◽  
Relationship Equation

The problem identified in this study is how visitors’ perception and the image communication influenced the overall image of Cirebon as a tourist destination. This study was conducted by using structural equation modelling. The results of this study show that perception variable equation significantly affected the overall image variable, while the image communication variable did not significantly affect the overall image. On the other hand, the causal relationship equation shows that there is a significant relationship between the exogenous latent variable of perception and endogenous latent variable of Overall Image. While there is no relationship between exogenous latent variable of image Communication with endogenous variable of overall image. The result is expected to give recommendation to the local government to develop and promote tourism that at the end can put tourism to generate income for the city.DOI: 10.15408/etk.v11i1.1872

Analysis and Design of Fixed–Fixed Bistable Arch-Profiles Using a Bilateral Relationship

2019 ◽  
Vol 11 (3) ◽  
Author(s):  
Safvan Palathingal ◽  
G. K. Ananthasuresh
Keyword(s):  
Boundary Conditions ◽  
Closed Form ◽  
Sufficient Conditions ◽  
Necessary And Sufficient Conditions ◽  
Single Variable ◽  
Fixed Boundary ◽  
Analysis And Design ◽  
Bilateral Relationship ◽  
Variable Equation ◽  
Necessary And Sufficient

Arch-profiles of bistable arches, in their two force-free equilibrium states, are related to each other. This bilateral relationship is derived for arches with fixed–fixed boundary conditions in two forms: a nonlinear single-variable equation for analysis and a closed-form analytical expression for design. Some symmetrical features of shape as well as necessary and sufficient conditions for bistability are presented as corollaries. Analysis and design of arch-profiles using the bilateral relationship are illustrated through examples.

Dynamic Modeling Analysis for Control of Chemical Vapor Deposition

1998 ◽  
Vol 120 (2) ◽  
pp. 164-169 ◽  
Author(s):  
M. A. Gevelber ◽  
M. Bufano ◽  
M. Toledo-Quin˜ones
Keyword(s):  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Control Volume ◽  
Chemical Vapor ◽  
Nonlinear Dynamic Model ◽  
Loop Control ◽  
Closed Loop Control System ◽  
Loop Control System ◽  
Fluid Transients ◽  
Variable Equation

A nonlinear dynamic model of the chemical vapor deposition (CVD) process has been developed to aid design of a closed-loop control system. A lumped control volume analysis is used to capture important mass and fluid transients and spatial affects, while a simplified single variable equation is used to represent the complex reaction chemistry. Steady-state experimental results and model predictions are compared and the control implications of the process dynamics are discussed.

Application of a geometrical volume equation to species with different bole forms

1986 ◽  
Vol 16 (2) ◽  
pp. 311-314 ◽  
Author(s):  
G. B. MacDonald ◽  
R. R. Forslund
Keyword(s):  
Diameter Measurement ◽  
Stem Analysis ◽  
Individual Tree ◽  
Breast Height ◽  
Centre Of Gravity ◽  
Variable Equation ◽  
Input Variables ◽  
Volume Equation ◽  
Volume Estimates ◽  
Geometrical Equation

Stem analysis of 20 Abiesbalsamea (L.) Mill., 68 Piceamariana (Mill.) B.S.P., 19 Piceaglauca (Moench) Voss, 31 Populustremuloides Michx., and 37 Betulapapyrifera Marsh. revealed form variation between species. A volume equation based on the paracone (a geometrical solid midway between a paraboloid and a cone) estimated individual tree volume within 10% of the true volume (at the 95% confidence level) for all species. The input variables required were total height and diameter at a relative height of 0.2 for Betulapapyrifera and 0.3 for the other four species. If breast-height diameter was used, the effect of form variation on the accuracy of volume prediction was more pronounced. In this case, the geometrical equation modified for each species according to the average centre of gravity provided more consistently accurate volume estimates than either the paracone equation or Honer's transformed variable equation. For all species, the diameter measurement position was more critical than the version of the geometrical equation selected.

THERMODYNAMIC STABILITY OF A FLUID WITH VARIABLE EQUATION OF STATE

2010 ◽  
Vol 25 (27) ◽  
pp. 2333-2348 ◽  
Author(s):  
NAIRWITA MAZUMDER ◽  
RITABRATA BISWAS ◽  
SUBENOY CHAKRABORTY
Keyword(s):  
Equation Of State ◽  
Thermodynamic Stability ◽  
State Parameter ◽  
Expansion Process ◽  
Thermal Equation ◽  
Third Law Of Thermodynamics ◽  
Variable Equation ◽  
Third Law ◽  
The Universe ◽  
General Thermodynamics

This paper deals with general thermodynamics for the universe filled with a perfect fluid, obeying an equation of state p = ω(z)ρ where the varying equation of the state parameter is chosen as two-index parametrization models namely: (a) linear redshift parametrization: ω(z) = ω0 + ω1z or (b) Jassal–Bagla–Padmanabhan (JBP) parametrization: [Formula: see text] where ω0, ω1 are constants. The behavior of temperature and the thermodynamic stability have been discussed. The thermal equation of state depends on both temperature and volume. As the universe evolves the fluid cools down obeying third law of thermodynamics and there will be thermodynamic stability during the expansion process without any phase transition or passing through any critical point.

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